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Telefunken
Telefunken EF86 6267 O-getter in Original Box - Diamond Bottom - Ulm 1963 - NOS
Telefunken EF86 6267 O-getter in Original Box - Diamond Bottom - Ulm 1963 - NOS
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$138.00 USD
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Product Summary
Model: 1963 Telefunken EF86 6267 O-getter (Made in Germany)
Soundlumia Tube Sound Rating: 9.5/10 - Outstanding
Early 1960s Ulm, Germany production - Unparalleled sound characteristics and superb build quality - True holographic sound stage with layered details and ultra clarity
Date code: U7213104 (U = Ulm, 3 = 1963)
GM (Mutual Conductance) test result: 102% NOS
Silkscreen: 100%
Packaging: Original Telefunken EF86 tube box
Professional Tube Testing
This set was tested and certified by RoeTest V11 tester with the following result:
Measured transconductance (GM): 2.03 mA/V - 102% (100% = 2.0 mA/V)
Measured plate current (IA): 2.95 mA - 98% (100% = 3.0 mA)
NO shorts, leakage or gas. NO noise or microphonics.
Curve trace is also included in the original RoeTest report.
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